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‘It’s the perfect place’: London Underground hosts tests for ‘quantum compass’ that could replace GPS (www.theguardian.com)

submitted 4 months ago by [email protected] to c/[email protected]

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[–] [email protected] 4 points 4 months ago

Ah, they are talking about an inertial measuring unit. Basically, by measuring all acceleration you’ve experienced you can calculate your change in position. They can’t determine absolute position though, only relative, so this doesn’t so much replace GPS as assist it.